Work guide attachment for forming invisible stitches



Feb. 28, 1956 2,736,283

C. l. ADAMS WORK GUIDE ATTACHMENT FOR FORMING INVISIBLE STITCHES Filed April 22, 1953 .9 l/ l l l ATTORNEYS.

United States Patent O WORK GUIDE ATTACHMENT FOR FORMING INVISIBLE STITCHES Chelsie I. Adams, Blairsville, Pa. Application April 22, 1953, Serial No. 350,385

1 Claim. (Cl. 112--140) This invention relates to a guide designed as a sewing machine attachment for guiding the work or material in which blind stitches are being formed, so that the material will be held in perfect line with each swing of the needle, to insure the proper formation of the blind stitching.

An important object of the invention is to provide a device of this character, which is so constructed and arranged that it may be readily and easily attached to the presser foot bar of the conventional cross stitch forming sewing machine.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combination of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawings:

Fig. 1 is a perspective view of a work guide, constructed in accordance with the invention.

Fig. 2 is an elevational View of one edge of the work guide.

Fig. 3 is a plan view thereof, illustrating a length of cloth being moved through the guide.

Fig. 4 is an end elevational view of the device.

Fig. 5 is a sectional view taken on line 5 5 of Fig. 3.

Fig. 6 is a sectional view taken on line 6-6 of Fig. 5.

Fig. 7 is an end elevational view illustrating the position of the needle in forming the invisible stitch.

Fig. 8 is a plan view of the work supplied with the cross stitch.

Fig. 9 is an edge elevational view thereof.

Fig. 10 is a perspective view illustrating the cross stitch as used in forming the invisible stitch.

Fig. 11 is a similar view taken from the opposite side of the work.

Referring to the drawing in detail, the device comprises a plate 5 having its rear edge rounded at 6, the forward or front edge of the plate being provided with a plurality of cutout portions extending inwardly therefrom.

As clearly shown by Fig. 1 of the drawing, the cutout portion 7 which is substantially wide, extends to a point on a line disposed longitudinally of the base plate and dividing the plate through the center thereof.

Another cutout portion 8 extends inwardly from the front edge of the plate and the metal between the cutout portions 7 and 8 is bent upwardly providing the tongue 9. A further cutout portion indicated at 10 is provided and extends inwardly from the forward edge of the plate, and defines a tongue 11 which is slightly shorter than the tongue 9 and is bent upwardly to lie in a plane above the tongue 9.

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The reference character 12 indicates a further cutout portion which s substantially wide and extends a substantial distance beyond the inner edges of the former cutout portions providing a space 13, the space 13 being shown as slightly offset towards the end 14 of the plate.

One end of the plate is extended upwardly at right angles providing the supporting bracket 15, and one end of the upwardly extended plate or bracket 15 is extended inwardly providing a section 16 disposed in parallel spaced relation with respect to the bracket 15. rIThe space between the members 15 and 16 is of such a width that it will receive the presser foot bar of the conventional sewing machine, there being provided the usual set screw 17 which passes through an opening 18 of the bracket, for securing the work guide in position on the presser foot bar.

It will of course be understood that in the formation of the cross stitch and invisible stitch, it is necessary for the needle to pass through the cloth at the extreme folded edge of the cloth, and in a direct line, otherwise the stitch when formed would be irregular and would not be invisible.

In forming the stitch, the cloth material is folded in a manner as shown by Fig. 6 of the drawing, with the folded portion A as extended under the tongue 9. The folded portion B of the cloth is extended under the adjacent tongue 8, the remaining portion of the cloth being disposed in the round portion or slot 12 and directed under the portion of the plate 5 adjacent to the lower end of the bracket 15.

As the cloth material is fed along the guide, the edges A and B of the cloth which have been folded, will contact the inner portions of the tongues 8 and 9, and if the cloth material is held in this position throughout the sewing operation, the invisible stitch will be properly formed in a direct line.

It might be further stated that the guide may be effectively used in forming the cross stitch and invisible stitch when the usual tape is secured between the folds of the cloth material, by merely inserting the tape between the pieces of cloth to be secured thereto.

Having thus described the invention what is claimed is:

A work guide adapted to be secured to the presser foot of a sewing machine, comprising a plate having cut out portions extending inwardly from the front edge thereof, the portions of said plate between said cut out portions providing tongues and being offset laterally providing shoulders at the inner ends of said tongues, said tongues being extended forwardly providing a substantially long tongue at the front end of said plate, and a second shorter tongue adjacent thereto, disposed in a plane above said substantially long tongue, and a third tongue disposed in a plane below said substantially long tongue, and said tongues adapted to extend into the folds of work, guiding the work under the needle of the machine.

References Cited in the le of this patent UNITED STATES PATENTS 944,094' Hilton Dec. 21, 1909 1,917,776 Sailer July 11, 1933 2,374,721 Bacon et al. May l, 1945 2,649,066 Knaus et al Aug. 18, 1953 FOREIGN PATENTS 264,579 Germany Sept. 25, 1913 233,534 Switzerland Nov. 1, 1944 

